Pantograph embroidery-machine



P. zUsT AND 1. METZGER.

PANTOGRAPH EMBROIDERY MACHINE. APPLICATION FILED IULY13l 1916. RENEWEDJAN. 23, 1920.

Patented May 25, 1920.

UNITED STATES PATENT OFFICE.

PAUL ZST, OF RHEINECK, ANI) JOHANN METZGER, F HEIDEN, SWITZERLAND,ASSIGNORS TO THE FIRM OF STAHELI, RIETMANN & CO., OF ST. GALLEN,

SWITZERLAND.

PANTOGRAPH EMBROIDERY-MACHINE.

Application led July 13, 1916, Serial No. 109,136. Renewed January 23,1920.

public of Switzerland, the first residing at Rheineck, Switzerland, thesecond residing at Heiden, Switzerland, have invented certain new anduseful Improvements in Fantograph Embroidery-Machines, of which thefollowing is a specification.

The object of our invention is a device for shuttle embroidery machinesfor the manuf- `facturing of curtains. The invention lies in the factthat for every single shuttle, two or more needles come into actionsimultaneously and serve to form a kind of festoon or decorative chainembroidery; also in the fact that the embroidery frame is moved by meansof a pantograph in the transmission ratio of 1 1.

The object of the invention is shown by means of an example on thedrawing, in the following way:

Figure 1 shows a longitudinal section of the stitch, on a considerablyenlarged scale.

Fig. 2 is a side view of the arrangement of the needles and of theshuttle track.

Fig. 3 is a front view of the arrangement of the needles.

Fig. 4 is a plan view of the arrangement of the needles.

Fig. 5 is a front view of the shuttle track.

Fig. 6 shows the pantograph in connection with the embroidery frame.

In Fig. 1, the numbers 1 and 2 indicate the foundation material (tulleand application material), which has to be embroidered. 3 and 4represent two adjacent needle threads which lie directly alongside oneanother on the front side of the embroidery. The shuttle thread isindicated by 5. The slip-knots a and b, which are Jformed by the needlethreads and lie alongside one another, are,

according to the present invention, simultaneously produced, and tied upin pairs by a shuttle. For this pur ose, for every shuttle s, twoneedles 6 and ,lying alongside one another. are attached to the needlebar, which latter is indicated on the drawing by 9. One of the needleslies somewhat higher than the other, this difference of height beingattained by means of the small block 8, which contains a hole for theupper needle 7, and a groove for the lower needle 6, which Groove liesexactly above a groove situated in the Specication of Letters Patent.

needle bar 9. The' needle 6, together with the small block 8, isfastened to the needle bar 9 by means oi the screw 10, while the needle7 is tightly fixed into the hole of the small block 8 by means oi theseparate screw 11. The eyes of both needles thus lie in such a mannerthat the needles can be threaded from the same side. Owing to thearrangement oil' two needles for every shuttle, the middle hole 13 ofthe shuttle track 12 has been accordingly made of larger dimensions thanis otherwise customary. Fig. 5 shows how the needles lie opposite to oneanother in the shuttle track.

In order, when embroidcring, to be able to use the embroidery cardexactly according to design and enlargement of the pattern, the machineis also provided with a pantograph 111, which has a ratio oftransmission of 1:1, instead of 1:6, as is customary. The pantograph isconnected with the embroidery. iframe, and can be adjusted. Thetransmission of the pantograph natu# rally requires a greaterexpenditure of effort on the part of the embroiderer, but this may bepartially overcome by the spring 18 which grips the lower arm of thepantograph. Moreover, the pantograph is balanced in a sidewise directionby two springs 16 and 17 working against one another, as soon as it ismoved from its middle position to one or other side. These two springsare attached to the upper part of the pantograph.

In connection with the embroidery frame 15, it should be remarked thatsame must be fitted into the machine frame in such a manner that it canbe moved in a sidewise direction for the execution of large patterns inconnection with the pantograph.

The result of the invention is that two stitches lying alongside oneanother can be embroidered at the same time. This consequently quicklyproduces a double-row stitch, which does not become undone when theembroidery is being cut oil or washed.

Te claim:

1. An embroidering machine having a pantograph operated fabric frame anda horizontal needle bar extending along said iframe; in combination withneedles arranged in pairs along said bar and a single shuttlesimultaneously coperating with each pair of needles. v

2. An embroidering machine having a pantograph operated fabric frame anda horizontal needle bar extending in front of said frame; in combinationwith needles mounted in pairs along said bar, the needles of each pairbeing both vertically and hori- Zonially spaced, and a single shuttlesimultaneously coperating with each pair of needles.

8.' An embroidering machine having a pantograph operated fabric frameand a horizontal needle bar; in combination with a block at eachstitching position on said bar, a screw for clamping said block to saidbar and thereby clamping a needle between the block and bar, said blockhaving a horizow tal needle seat vertically and laterally spaced fromthe first needle position, and a screw for clamping a needle in saidseat.

In testimony whereof we have allixed our signatures in presence of twowitnesses.

PAUL ZUST. JOHANN METZGER.

Witnesses FRANK TIMMKE, EMIL MEILE.

